Page 3
DISASSEMBLY
ELECTRONICS MODULE:
Lay unit down. Open cover and remove Electronics
Module’s six
mounting
screws and
washers with a
#2 Phillips
head screw-
driver (see Fig.
6). To clear
power plug
and fuse hold-
ers when
removing
Module, lift
Module’s right
side slightly,
then slide
Module
towards the
right and remove.
OPTICAL HANDPIECE LIGHT BOARD (PN 330407):
Remove cable connector on Board (see Fig. 7). Remove
screws and washers with 1/16 Allen wrench.
Reassemble in reverse order.
POWER/DISPLAY BOARD (PN 330350):
Remove the Cable Connector from Optical Handpiece
Board (Fig. 7). Remove Board mounting screws and
washers with 1/16 Allen wrench. Remove Optical
Handpiece Board and place to the side. Remove
remaining Cable Connectors from Power/Display
Board. Clip cable tie going through the holders. Leave
other cable ties in place. This will make reassembly eas-
ier. Remove the four standoffs on Board with 1/4” sock-
et. Remove the four cap screws and washers with 1/16”
Allen wrench. Remove the four cap screws and washers
in transformer with 5/32” Allen wrench. Remove Board
from chassis.
Reassembly is done in reverse order. Ensure that spac-
ers are present on #4 standoffs prior to installing
Board. Reconnect all connectors. Install 1/16” cable ties
approximately where previously installed.
POWER SWITCH (PN 830018):
Remove wire terminals from Switch (see Figs. 8a & 8b).
Press tabs in on Switch and remove Switch. Remove
cover and place on new Switch. Place new Switch into
chassis with circle on toggle to the OFF side.
Reassemble wires with white to white, and black to
black.
SECONDARY FUSE HOLDERS (PN 830090 - 2 Qty):
De-solder wires from Holder (see Fig. 9). Remove
Holder with 9/16” open-end wrench. Take Spacer and
place on new Holder and replace Holder. Re-solder
and heat shrink wires on Holder (use other Holder as
reference). Ensure that sufficient gap between power
connector and Holder terminal is maintained to pre-
vent arcing. Place one 0.63 Amp fuse in each Holder.
POWER CORD RECEPTACLE (PN 840067):
Remove wires from Power Switch (see Fig. 9). Remove
ground from ground terminal with 5/16” socket. Remove
receptacle from chassis with #1 Phillips head screwdriv-
er.
Re-assembly is done in the reverse order. Connect wires
to the power switch white to white, and black to black.
Figure 6
Electronics Module
Mounting
Hardware
(6 places)
Figure 7
Light Board
Mounting Hardware
& Standoff (x4)
Optical Handpiece
Cable Connector
Optical
Handpiece
Light Board
Power/
Display
Board
Power/Display Board
Transformer
Cable Tie
w/Holder
Figure 8a
Figure 8b
Wire
Terminals
(4)
Off / ’O’
Position
Switch
Cover
Power
Switch
Figure 9
Heat Shrink
Power Cord
Receptacle
Secondary
Fuse
Holder (2)
Fuse Holder
Spacer
Power Switch
Ground
Terminal